EP 3136623 A4 20170426 - OPTICAL REPEATER AND OPTICAL FIBER COMMUNICATION SYSTEM
Title (en)
OPTICAL REPEATER AND OPTICAL FIBER COMMUNICATION SYSTEM
Title (de)
OPTISCHER REPEATER UND GLASFASERKOMMUNIKATIONSSYSTEM
Title (fr)
RÉPÉTEUR OPTIQUE ET SYSTÈME DE COMMUNICATION PAR FIBRES OPTIQUES
Publication
Application
Priority
CN 2014077443 W 20140514
Abstract (en)
[origin: EP3136623A1] Embodiments of the present invention disclose an optical repeater and an optical fiber communications system. An implementation solution of the optical repeater includes: a first input end of the optical repeater, a first output end of the optical repeater, a first erbium doped fiber, a first coupler, a second coupler, and a first pump light processing component, where the first input end of the optical repeater is connected to an input end of the first erbium doped fiber, an output end of the first erbium doped fiber is connected to an input end of the first coupler, a first output end of the first coupler is connected to a first input end of the second coupler, and an output end of the second coupler is connected to the first output end of the optical repeater; an input end of the first pump light processing component is connected to a second input end of the second coupler; and an output end of the first pump light processing component is connected to a second output end of the first coupler. In this solution, when all local-end pump lights fail, a reverse pump light can still enter, which can improve reliability of the optical fiber communications system.
IPC 8 full level
H04B 10/29 (2013.01); H04B 10/291 (2013.01)
CPC (source: EP US)
G02B 6/4427 (2013.01 - US); H01S 3/06783 (2013.01 - US); H01S 3/094015 (2013.01 - US); H01S 3/1608 (2013.01 - US); H04B 10/29 (2013.01 - EP US); H04B 10/2914 (2013.01 - US); H04B 10/2916 (2013.01 - EP US)
Citation (search report)
- [XI] EP 0954125 A2 19991103 - LUCENT TECHNOLOGIES INC [US]
- [I] US 2004201882 A1 20041014 - KIKUCHI NOBUHIKO [JP]
- [A] EP 1018666 A1 20000712 - FURUKAWA ELECTRIC CO LTD [JP]
- See references of WO 2015172328A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3136623 A1 20170301; EP 3136623 A4 20170426; CN 106170933 A 20161130; CN 106170933 B 20190412; JP 2017521972 A 20170803; JP 6312927 B2 20180418; US 2017063463 A1 20170302; US 9876574 B2 20180123; WO 2015172328 A1 20151119
DOCDB simple family (application)
EP 14891772 A 20140514; CN 2014077443 W 20140514; CN 201480072816 A 20140514; JP 2017512080 A 20140514; US 201615350995 A 20161114